vc_screen: rewrite vcs_size to accept vc, not inode

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It is weird to fetch the information from the inode over and over. Read
and write already have the needed information, so rewrite vcs_size to
accept a vc, attr and unicode and adapt vcs_lseek to that.

Also make sure all sites check the return value of vcs_size for errors.

And document it using kernel-doc.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Link: https://lore.kernel.org/r/20200818085706.12163-5-jslaby@suse.cz
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Jiri Slaby 2020-08-18 10:56:55 +02:00 • committed by Greg Kroah-Hartman

parent 7d62549a22

commit 71d4abfab3

1 changed files with 29 additions and 17 deletions

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drivers/tty/vt/vc_screen.c

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